The spelling of the word "Papejay" is unique and can be explained using the International Phonetic Alphabet (IPA). The first syllable is pronounced as /peɪp/, with a long "a" sound, followed by a short "e" sound. The second syllable is pronounced as /dʒeɪ/, with a soft "j" sound and a long "a" sound. The spelling "jay" is used instead of "jay" to reflect the soft "j" sound. Overall, the pronunciation of Papejay is /peɪp.dʒeɪ/.